package com.yy.mapper;

import com.yy.pojo.Dept;
import org.apache.ibatis.annotations.*;

import java.util.List;

@Mapper
public interface DeptMapper {
    /**
     *查询所有部门数据
     */
    //方式一：手动结果映射
//    @Results({
//           @Result(column = "create_time" , property = "createTime"),
//            @Result(column = "update_time",property = "updateTime")
//    })
    //方法二：起别名
    // @Select("select id, name,create_time createTime,update_time updateTime from dept order by update_time desc")
    @Select("select id, name,create_time ,update_time  from dept order by update_time desc")
    List<Dept> findAll();


    /**
     * 根据id删除部门
     */
    @Delete("delete from dept where id = #{id}")
    void deleteBuId(Integer id);

    /**
     * 新增部门
     */
    @Insert("insert into dept(name,create_time,update_time) values(#{name},#{createTime},#{updateTime})")
    void insert(Dept dept);

    @Select("select id,name,create_time,update_time from dept where id = #{id}")
    Dept getById(Integer id);

    @Update("update dept set name = #{name} , update_time = #{updateTime} where id = #{id}")
    void update(Dept dept);
}
